Bolt's final celebratory throw would have earned him a sixth-place finish at this year's Jamaican national championships

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Jamaica's Usain Bolt holds the flag of Brazil after winning the gold medal in the men's 4x100-meter relay final during the athletics competitions of the 2016 Summer Olympics at the Olympic stadium in Rio de Janeiro, Brazil, Friday, Aug. 19, 2016.

How did Usain Bolt celebrate winning a ninth Olympic gold medal?

He went into a darkened Olympic Stadium, surrounded by volunteers — and started throwing a javelin.

After his news conference ended in the wee hours of Saturday morning, the Jamaican sprint superstar who says the Rio Games are his last Olympics came back onto the track with most of the lights in the stadium having already been turned off.

Usain Bolt just threw the javelin 56 meters while messing around with volunteers in a darkened Olympic Stadium. Really.